Advisory Published

MFSA2025-24: Security Vulnerabilities fixed in Thunderbird ESR 128.9

First published: Tue Apr 01 2025(Updated: )

Security Vulnerabilities fixed in Thunderbird ESR 128.9

Affected SoftwareAffected VersionHow to fix
Thunderbird<128.9
128.9

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Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of MFSA2025-24?

    The severity of MFSA2025-24 is classified as critical, indicating a significant risk to systems using the affected software.

  • How do I fix MFSA2025-24?

    To fix MFSA2025-24, upgrade your Thunderbird ESR to version 128.9 or later.

  • What does MFSA2025-24 address?

    MFSA2025-24 addresses multiple security vulnerabilities that could potentially be exploited to compromise the confidentiality and integrity of data.

  • Which versions of Thunderbird ESR are impacted by MFSA2025-24?

    MFSA2025-24 impacts all versions of Thunderbird ESR prior to 128.9.

  • Is my email data safe from MFSA2025-24 if I have updated Thunderbird ESR?

    Yes, if you have updated to Thunderbird ESR version 128.9 or later, your email data is protected against the vulnerabilities described in MFSA2025-24.

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